Blighted Gorge

{T}: Add {C}.
{4}{R}, {T}, Sacrifice this land: It deals 2 damage to any target.

Swarm Surge

Devoid (This card has no color.)
Creatures you control get +2/+0 until end of turn. Colorless creatures you control also gain first strike until end of turn.

Ghostfire Blade

Equipped creature gets +2/+2.
Equip {3}
This Equipment's equip ability costs {2} less to activate if it targets a colorless creature.

Mountain

Sludge Crawler

Devoid (This card has no color.)
Ingest (Whenever this creature deals combat damage to a player, that player exiles the top card of their library.)
{2}: This creature gets +1/+1 until end of turn.

Forerunner of Slaughter

Devoid (This card has no color.)
{1}: Target colorless creature gains haste until end of turn.

Endless One

This creature enters with X +1/+1 counters on it.

Bloodfell Caves

This land enters tapped.
When this land enters, you gain 1 life.
{T}: Add {B} or {R}.

Nomad Outpost

This land enters tapped.
{T}: Add {R}, {W}, or {B}.

Swamp

Dust Stalker

Devoid (This card has no color.)
Haste
At the beginning of each end step, if you control no other colorless creatures, return this creature to its owner's hand.

Wasteland Strangler

Devoid (This card has no color.)
When this creature enters, you may put a card an opponent owns from exile into that player's graveyard. If you do, target creature gets -3/-3 until end of turn.

Roast

Roast deals 5 damage to target creature without flying.

Vile Aggregate

Devoid (This card has no color.)
Vile Aggregate's power is equal to the number of colorless creatures you control.
Trample
Ingest (Whenever this creature deals combat damage to a player, that player exiles the top card of their library.)

Dominator Drone

Devoid (This card has no color.)
Ingest (Whenever this creature deals combat damage to a player, that player exiles the top card of their library.)
When this creature enters, if you control another colorless creature, each opponent loses 2 life.